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https://issues.apache.org/jira/browse/IGNITE-4175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15651680#comment-15651680
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Andrey Gura commented on IGNITE-4175:
-------------------------------------
I completely don't understand why our JDBC drivers return {{"null"}} string
instead of {{null}} value in this case. From my point of view current behavior
is incorrect. See also JDCB {{ResultSet.getString()}} method's javadoc:
{code:java}
/**
* Retrieves the value of the designated column in the current row
* of this <code>ResultSet</code> object as
* a <code>String</code> in the Java programming language.
*
* @param columnIndex the first column is 1, the second is 2, ...
* @return the column value; if the value is SQL <code>NULL</code>, the
* value returned is <code>null</code>
* @exception SQLException if the columnIndex is not valid;
* if a database access error occurs or this method is
* called on a closed result set
*/
String getString(int columnIndex) throws SQLException;
{code}
> SQL: JdbcResultSet class wasNull() method should return true on NULL fields
> ---------------------------------------------------------------------------
>
> Key: IGNITE-4175
> URL: https://issues.apache.org/jira/browse/IGNITE-4175
> Project: Ignite
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.6, 1.7
> Reporter: Andrew Mashenkov
> Assignee: Andrew Mashenkov
> Labels: newbie
> Fix For: 1.8
>
>
> For now wasNull() method can return false for NULL field in case of field
> typed as String.
> Startpoints are org.apache.ignite.internal.jdbc.JdbcResultSet class
> and org.apache.ignite.internal.jdbc2.JdbcResultSet class
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